78284890

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{71821}}^1$

素因数の和:71937

約数の個数: 16

約数和(自身を含む): 142207560

約数和(自身を除く): 63922670

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 71821, 143642, 359105, 718210, 7828489, 15656978, 39142445, 78284890]

約数ペア:

[(1, 78284890), (2, 39142445), (5, 15656978), (10, 7828489), (109, 718210), (218, 359105), (545, 143642), (1090, 71821)]